Ok, so I have a Dunlop CrayBaby Classic and it's had a bit of a scratchy pot since the day I've had it, since I've never owned a Wah before I though that's just what some of them did. I finally had enough cause it kept getting worse and worse. Pulled the back off, took the pot off and sprayed some basic Tyre Silicone inside the pot, gave it a wipe to get rid of excess and now it is as clean as a whistle. Theres my tip for the day. Hope this helps someone